Jordan engine plug



July 14, 1931-. H. N. WEIR 7 JORDAN ENGINE PLUG Filed Aug. 26, 1929Imam/ran Harry /V W Arron/wry Patented July 14, 193i UNITED STATES HARRYN. WEIR, 0F HOOSICK FALLS, NEW MACHINE 00., 0F HOOSICK FALLS, NEW

YORK, ASSIGNOR TO THE NOBLE & WOOD YORK, A CORPORATION OF NEW YORKJORDAN ENGINE PLUG Application filed August 26,

My invention relates to paper making machinery are particularly toimprovements in the construction of jordans, refining engines. and thelike. a

Machines of this character comprise a tapered shell provided on theinterior with I fixed cutting elements, and a cone or plug havingcutting elements or blades on the surface thereof, and which is axiallymounted to rotate within the shell. Material to be treated is introducedinto the smaller end of the device and is carried forward to the larger'end and discharged therefrom by centrifugal force.

Many grades of stock which are introduced into the machines containconsiderable foreign matter such as bits of wire, staples, paper clipsand otherhard particles which are ultimately reduced by passage be=tween the cutting elements. However, these hard particles, being sweptbetween the stationary and revolving knives, cause a great deal of wearon the device, particularly the smaller end of the plug where the,material is introduced and eventually cause the bars to become loosenedand broken. In many cases the entire set of knives and wedges must bereplaced. i

Even when the better grades of stock are used, the large amount of waterpassing through. the jordan eventually causes the wood in the wedges towarp, rise, at the end, and be destroyed, and the blades loosened. v

My invention relates to a cast conical section having knives integraltherewith to form the front section of the plug. This section isfastened to the plu shaft by any suitable means, and has a note edflange that fits over 'the movable knives and wedges thereby acting asan additional holding or. locking means, This flange also acts as ashield to protect the ends of the knives and wedges.

The section is preferably secured to the main body of the plug by lonbolts extending parallel to the shaft, an ending ina recess in the plugbody. The bolts are threaded where they pass into the recess and 'areheld 'by nuts andlock nuts. The recess 1929. Serial No. 388,426.

is covered to protect the nuts from being washed and destroyed. '1

From the above,- it-will be seen that I provide a cast renewable sectionof hardened material. The knives thereon will receive the brunt of thewear because they are first exposed to the inflowing stock and thesection willserve generally to protect the ends of the knives and wedgesof the plug proper My invention, therefore, includes. the novel elementsand the' combinations and arrangements of elements described below andillustrated in.the accompanying drawings, in which- Fig. 1 is alongitudinal axial section of a half jordan plug, with wedges omitted,showing the renewable section moved out of contact with the plug;

Fig. 2 is a fragmentary view of the jor dan plug taken from positionindicated by lines 22 in Fig. 1; I

Fig. 3 is a fragmentary view'of the renewable section taken fromposition indicated by lines 33 in Fig. 1;

, Fig. 4 is a perspective view of a jordan plug with my renewablesection attached; and

Fig. 5 is a fragmentary perspectiveqview of a Wedge. u

Referring to the drawings, 1 represents the usual shaft to which themain body, 2,

of the plug is keyed or otherwise secured. Attached tothe. plug, 2, arethe bars of knives, 3, which are secured in place by wedges, 4.The'bars, 3, and wedges, 4, at the smaller end of the plug are'notched,as shown at.17 in Fig. 1, and 19 in Fig. 5, respectively, adapting theseelements to fit beneath and be retained by the flanges, 6, of theremovable section as hereinafter described.

My removable section is shown generally at 5. It is conical shaped andhas a notched flan e, 6, which is adapted to fit over the note ed endsof knives, 3, and wedges, 4, when drawn into close contact with plug, 2.This section is preferably made of cast manganese steel but it may beconstructed of any knives, 7. These blades are so disposed around theperiphery of section, 5, that they will align with the bars, 3, of plug,2, when section, 5, is secured to the plug. The outside and workingedges of the blades may be machine ground to a true conical surface.

The metal filling, 8, between knives, 6, is so cast that it" will besubstantially flush with -the tops of wedges, 4, when the section isattached to the plug.

Section, 5, is provided with radial slots, 9, as shown, into whichbolts, 10, are placed.

These bolts pass through cylindrical holes, 5

11, in the plug and which are parallel to shaft, 1. These bolts, 10,terminate in a recess, 12, at the larger end of the plug and .arethreaded to receive nuts, 14, and lock nuts, 15. Covering this recess,12, is plate,

' 16, secured to the plug by any suitable means.

When section, 5, is secured to plug, 2, the

notched flange, 6, overlies and holds 1n placeboth the wedges, 4, andthe blades, 3, by

-' bearing against shoulders formed by notches,

17 and 19.

From the foregoing, it will be apparent that any hard material whichenters the device will first come into contact with the blades or barson the removable section, 5,

and, since these bars extend for a rather substantial distance axiallyalong the surface of the plug, such material will be pracexcessive theend section may be easily removed and replaced by simply removing thebolts, 11.. While I have described my invention in its preferredembodiment it is to be understood that the words which I have used arewords of description rather than of limitation and that the drawings aremerely illustrative. Hence changes, within the purview of the appendedclaims, may be made withoutdeparting from the true scope and spirit ofmy invention.

at I claim is 1. The combination with a jordan plug, of a metal sleeve,having integral knives, fitting over and forming the smaller end of theplug.

2. The combination with a jordan plug having removable knives andwedges, of a metal section having integral knives thereon and fittingover the ends of said wedges at the smaller end of said plug; wherebysaid wedges are secured in place.

3. The combination with a jordan plug having removable knives andwedges, of a metal section having integral knives thereon and fittingover the ends of said knives at the smaller end of said plug; wherebysaid knives are secured in place.

4. The combination with a jordan plug having removable knives andwedges, of a metal section having integral knives thereon and fittingover the ends of said knives and wedges at the smaller end of said plug,whereby said knives and wedges are secured in place.

5. The combination with a jordan plug, keyed to a shaft, of a cast metalconical section, with knives integral therewith, having a tapered,recessed flange closely embracing the end of said plug.

having knives and wedges, of a metal section having knives cast integraltherewith, and forming the front end of said plug; said section havinganannular recessed flange fitting over the front end of the plug andprotecting the ends of the knives and wedges of said plug.

7. The combination with a Jordan plug, keyed to a shaft and providedwith axially extending passages therein leading to a recess at the backof the plug, of a cast metal sleeve having integral blades, and formingthe front end of the plug; said sleeve being attached to the plug bythreaded elements extending through said passages and secured. by nutsin said recess.

8. The combination with a jordan plug,- having knives notched at thesmall end of the plug, of a conical metal section having integral knivesand closely embracing the end of said plug, and the notched ends of saidknives; the knives in said plug and section being disposed in alignedrelation.

9. In a jordan plug including knives and wedges, a removable sectionforming the smaller end of said plug and comprising a conical castinghaving a plurality of knives integral therewith and located on thesurface thereof and having an annular 'recessat the larger end adaptingit to fit over and secure in place the ends of said knives and wedges.

10. In a jordan plug including knives and wedges,v a removable sectionforming the smaller end of said plug and comprising a conical castinghaving a plurality of knives integral therewith and located on thesurface thereof and adapted to align with the knives of said plug andhaving an annular recess at the larger end adapting it to fit over andsecure in place the ends of said knives and Wedges.

11. In a jordan plug including notched knives andwedges, a removablesection forming the small end of said plug and comprising a conicalcasting having a plurality of knives integral therewith and located onthe surface thereof and having an annular recess at the larger endadapting 6. The combination with a jordan plug it to fit over and securein place the notched ends of said knives and wedges.

